EP2597682B1 - Solarzellenanordnung - Google Patents

Solarzellenanordnung Download PDF

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Publication number
EP2597682B1
EP2597682B1 EP11809494.5A EP11809494A EP2597682B1 EP 2597682 B1 EP2597682 B1 EP 2597682B1 EP 11809494 A EP11809494 A EP 11809494A EP 2597682 B1 EP2597682 B1 EP 2597682B1
Authority
EP
European Patent Office
Prior art keywords
solar cell
cell array
cell module
fixing
cylindrical portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP11809494.5A
Other languages
English (en)
French (fr)
Other versions
EP2597682A4 (de
EP2597682A1 (de
Inventor
Tatsuji Kambara
Hiroaki Hirata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kyocera Corp
Original Assignee
Kyocera Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kyocera Corp filed Critical Kyocera Corp
Publication of EP2597682A1 publication Critical patent/EP2597682A1/de
Publication of EP2597682A4 publication Critical patent/EP2597682A4/de
Application granted granted Critical
Publication of EP2597682B1 publication Critical patent/EP2597682B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00—Supporting structures for PV modules
    • H02S20/20—Supporting structures directly fixed to an immovable object
    • H02S20/22—Supporting structures directly fixed to an immovable object specially adapted for buildings
    • H02S20/23—Supporting structures directly fixed to an immovable object specially adapted for buildings specially adapted for roof structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/20—Peripheral frames for modules
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
    • F24S25/61—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for fixing to the ground or to building structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
    • F24S25/63—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for fixing modules or their peripheral frames to supporting elements
    • F24S25/632—Side connectors; Base connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/70—Arrangement of stationary mountings or supports for solar heat collector modules with means for adjusting the final position or orientation of supporting elements in relation to each other or to a mounting surface; with means for compensating mounting tolerances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S2020/10—Solar modules layout; Modular arrangements
    • F24S2020/11—Solar modules layout; Modular arrangements in the form of multiple rows and multiple columns, all solar modules being coplanar
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S2025/01—Special support components; Methods of use
    • F24S2025/014—Methods for installing support elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
    • F24S2025/601—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules by bonding, e.g. by using adhesives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/30—Arrangement of stationary mountings or supports for solar heat collector modules using elongate rigid mounting elements extending substantially along the supporting surface, e.g. for covering buildings with solar heat collectors
    • F24S25/33—Arrangement of stationary mountings or supports for solar heat collector modules using elongate rigid mounting elements extending substantially along the supporting surface, e.g. for covering buildings with solar heat collectors forming substantially planar assemblies, e.g. of coplanar or stacked profiles
    • F24S25/35—Arrangement of stationary mountings or supports for solar heat collector modules using elongate rigid mounting elements extending substantially along the supporting surface, e.g. for covering buildings with solar heat collectors forming substantially planar assemblies, e.g. of coplanar or stacked profiles by means of profiles with a cross-section defining separate supporting portions for adjacent modules
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/10—Photovoltaic [PV]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Definitions

  • the present invention relates to a solar cell array.
  • a solar cell array includes a plurality of solar cell modules and a mount for fixing the plurality of solar cell modules.
  • a long and narrow structural member is installed as the mount on a roof of a house, and the solar cell modules are fixed at opposite sides of each module on the mount over its entire length.
  • a solar cell array is proposed in which solar cell modules are fixed to a roof by using small fixing members instead of the long and narrow structural member.
  • each fixing member has to support the dead load, the snow load and the wind load, which are applied to about a half area of one solar cell module.
  • two or more fixing members are required for one solar cell module, and a larger number of man-hours for installation work and a larger amount of materials are needed in some cases.
  • DE 202008007837 U1 discloses a solar cell array according to the preamble of claim 1. It relates to an arrangement for a potential connection of a PV module framed by an anodized module frame to a bare metal support section.
  • the PV module is attached to the support section in such a way that at least one module clamp depresses the module frame against the carrier profile.
  • a screw connection is provided for clamping the module clamp .
  • a small metal plate is inserted, which is penetrated by the screw.
  • the metal plate has retaining means for mounting the metal plate and at least one sharp-edged ridge.
  • an attachment system for the attachment of a solar panel comprises a support structure for supporting an underside of the panel. Furthermore, the attachment system comprises a pin-shaped attachment member which is connected to the support structure and, in use, extends along one of the edges of the panel and substantially at right angles to the panel. A clamping member which is coupled to the pin-shaped attachment members, in a fitted state, is situated over an edge region on the upper side of the panel and is clamped against the respective edge region by means of the pin-shaped attachment member in order to fasten the panel against the support structure.
  • the clamping member at least in the pre-fitting state, is rotatable with respect to the pin- shaped attachment member in a plane at right angles to the pin-shaped attachment member.
  • the clamping member has a peripheral edge and is rotatable with respect to a panel to be fitted or fitted on the support structure into an inactive position in which that portion of the peripheral edge which is turned towards the respective panel is not situated over the edge region of the panel, so that fitting a panel on or removing a panel from the support structure is made possible.
  • An object of the present invention is to provide a solar cell array, which can reduce the number of fixing members used for fixing solar cell modules, and which enables the fixing members and the solar cell modules to be easily arranged at suitable positions.
  • the present invention provides a solar cell array according to claim 1. Further embodiments of the invention are described in the dependent claims.
  • fixing members can be easily arranged at the suitable positions between corners of the solar cell modules adjacent to each other so that the solar cell modules can be fixed.
  • one fixing member can support various kinds of loads on about one sheet of the solar cell module to reduce the number of fixing members, which result in reducing the amount of materials, decreasing of the number of installation steps and make solar cell modules arrayed in a good appearance.
  • a solar cell array 101 includes a plurality of solar cell modules 3 and mounting members 4.
  • the solar cell array 101 is fixed onto a base structure 2 (roof surface) that includes a shingle 2a, a sheathing roof board 2b, and a rafter 2c.
  • the plurality of solar cell modules 3 are arrayed in a state not overlapping with each other with their rear surfaces positioned on the lower side.
  • a base structure 2 roof surface
  • the plurality of solar cell modules 3 are arrayed along two directions, i.e., a Y-direction corresponding to a direction in which the sloped surface 2 is sloped, and an X-direction perpendicular to the Y-direction.
  • each of the solar cell modules 3 includes a solar panel 11 and a frame 12.
  • the solar panel 11 includes, as illustrated in Fig. 2(b) , a light receiving surface 11a (one principal surface of a light-transmissive base plate 14) for primarily receiving light, and a light non-receiving surface 11b (one principal surface of a rear-surface protective member 13) that is positioned on the reverse side with respect to the light receiving surface 11a.
  • the solar panel 11 includes the light-transmissive base plate 14, a pair of filling materials 15, a plurality of solar cell elements 17, the rear-surface protective member 13, and a terminal box 18, which are successively arranged from the side defining the light receiving surface 11a.
  • the light-transmissive base plate 14 functions as a base plate for the solar cell module 3.
  • the pair of filling materials 15 is comprised of, e.g., a thermosetting resin.
  • the plurality of solar cell elements 17 are protected by the filling materials 15 surrounding them and are electrically connected to each other by inner leads 16.
  • the rear-surface protective member 13 protects the rear surface of the solar cell module 3.
  • the terminal box 18 takes out an output power obtained with the solar cell elements 17 to the outside.
  • the light non-receiving surface 11b is not limited to a surface in the form not receiving light at all.
  • the light non-receiving surface 11b may receive part of light incoming from the side defining the light non-receiving surface 11b by, for example, using a light-transmissive material to form each of the rear-surface protective member 13 and the filling material 15, the latter being positioned between the solar cell elements 17 and the rear-surface protective member 13.
  • the solar cell elements 17 are each formed by using a substrate comprised of, e.g., single-crystal silicon or polycrystalline silicon.
  • the adjacent silicon substrates may be electrically connected to each other by using the inner leads 16 as described above.
  • the type of the solar cell element 17 is not limited to particular one.
  • the solar cell element 17 may be formed by using, e.g., a thin-film solar cell comprised of amorphous silicon, a CIGS solar cell, a CdTe solar cell, or a solar cell obtained by forming the thin-film amorphous on a crystalline silicon substrate.
  • the solar cell comprised of amorphous silicon, CIGS or CdTe can be formed by appropriately stacking an amorphous silicon layer, a CIGS layer, or a CdTe layer on a light-transmissive substrate in combination with transparent electrodes, etc.
  • the terminal box 18 includes a box body, a terminal plate arranged in the box body, and an output cable for leading power to the outside of the box body.
  • the box body can be comprised of, e.g., a modified polyphenylene ether resin (modified PPE resin) or a polypnenylene oxide resin (PPO resin).
  • the frame 12 has the function of holding the solar panel 11. As illustrated in Figs. 2(a) and 2(b) , the frame 12 is a long member for reinforcing an outer periphery of the solar panel 11.
  • the frame 12 includes a fitting portion 12a, a frame upper surface 12b, a frame lower surface 12c and a frame lateral surface 12d.
  • the fitting portion 12a is fitted to the solar panel 11 when the solar cell array 101 is installed as described later.
  • the frame upper surface 12b is a principal surface of the frame 12, which is positioned on the side receiving the sunlight.
  • the frame lower surface 12c is a principal surface of the frame 12, which is positioned on the reverse side with respect to the frame upper surface 12b.
  • the frame lateral surface 12d interconnects the frame upper surface 12b and the frame lower surface 12c, and it is directed outwards.
  • the frame 12 can be manufactured, for example, by extruding aluminum.
  • the frame 12 positioned on the eave side is called an eave-side frame 12e hereinafter.
  • the eave side implies the lower side in the Y-direction.
  • the mounting member 4 is arranged at a position among corners of the adjacent solar cell modules 3.
  • the mounting member 4 includes, as illustrated in Figs. 3(a) and 3(b) , a first member 21, a second member 22, a third member 23, a fixing member 24, wood screws 25 and an adhesive member 26.
  • the third member 23 is arranged on the second member 22, and the second member 22 and the third member 23 are fixed onto the first member 21 by using the fixing member 24.
  • the wood screws 25 have the function of fixing the first member 21 to the base structure 2.
  • the adhesive member 26 has the function of sealing off a clearance between the first member 21 and the base structure 2 and reducing penetration of rain into the inner side of the base structure 2 along the wood screws 25.
  • the first member 21 is extended in the Y-direction.
  • the second member 22 is positioned on first member 21 and includes a support portion for supporting the rear surface of the solar cell module 3.
  • the third member 23 is positioned on the second member 22 and includes a clamping portion to clamp the solar cell module 3 in cooperation with the support portion of the second member 22.
  • the support portion is a part of a second principal surface 22d described later, and the clamping portion is a press-fixing portion 23d described later.
  • the fixing member 24 fixes the second member 22 and the third member 23 to the first member 21, and it vertically penetrates through the second member 22 and the third member 23.
  • the second member 22 and the third member 23 are movable along a lengthwise direction of the first member 21.
  • the mounting member 4 thus constructed can fix various solar cell modules 3 having different sizes in the Y-direction. Also, the fixing position of the mounting member 4 can be finely adjusted depending on a variation of tolerances in the Y-direction among the plurality of solar cell modules 3. Therefore, the number of the mounting members 4 needed to fix one solar cell module 3 can be reduced, and installation accuracy required in fixing of the mounting member 4 can be reduced. As a result, a cost reduction and an improvement of installation efficiency can be realized.
  • the vertical direction used here implies a Z-direction that is orthogonal to both the X-direction and the Y-direction.
  • the first member 21 has an elongate shape in which its lengthwise direction is in the Y-direction. More specifically, the first member 21 is a rectangular rail having a substantially U-shaped cross-section.
  • the first member 21 has a principal surface 21a and through-holes 21b.
  • the principal surface 21a is positioned on the reverse side with respect to an opening in the substantially U-shaped cross-section, and it faces the base structure 2.
  • the through-holes 21b are formed in the principal surface 21a, and the wood screws 25 are inserted in the through-holes 21b.
  • the first member 21 is fixed to the base structure 2 by the wood screws 25 inserted in the through-holes 21b.
  • the principal surface 21a may include a concave-convex portion extending in the lengthwise direction of the first member 21.
  • the through-holes 21b may be formed in the concave portion of the principal surface 21a.
  • the first member 21 includes a pair of resting portions 21c protruding from both sides of the opening in the substantially U-shaped cross-section, and a gap 21d positioned between the resting portions 21c.
  • the second member 22 has a bolt hole 22h which is formed substantially at a center thereof and which allows insertion of the fixing member 24 therethrough.
  • the resting portions 21c support the second member 22, and the gap 21d allows the fixing member 24 to be moved when the fixing member 24 is loosened, which has been inserted through the bolt hole 22h of the second member 22 to fix the second member 22 onto the first member 21.
  • the second member 22 is made movable in the Y-direction by the presence of the gap 21d.
  • the first member 21 can be manufactured by extruding a metal, such as an aluminum alloy.
  • a metal such as an aluminum alloy.
  • the first member 21 can be manufactured, for example, by roll-forming or bending a stainless steel plate or a plated steel plate with rolls or a bender.
  • the second member 22 and the third member 23 are fixed to the first member 21 by the fixing member 24, the second member 22 is movable in the Y-direction and the third member 23 is movable in the X-direction and the Y-direction. Accordingly, positioning of the solar cell module 3 can be finely adjusted in the X- and Y-directions.
  • the second member 22 includes, in its first principal surface 22a facing the first member 21, a first guide portion 22c for guiding movement of the second member 22 in the lengthwise direction of the first member 21 (i.e., in the Y-direction).
  • a first guide portion 22c for guiding movement of the second member 22 in the lengthwise direction of the first member 21 (i.e., in the Y-direction).
  • the second member 22 includes, in its second principal surface 22d facing the third member 23, a second guide portion 22f for guiding movement of the third member 23 in the lengthwise direction of the second member 22 (i.e., in the X- direction).
  • the third member 23 has a through-hole 23b through which the fixing member 24 is inserted, the through-hole 23b allowing the third member 23 to be moved with respect to the first member 21 before the third member 23 is fixed to the first member 21.
  • the through-hole 23b is, e.g., a hole elongate in the X-direction.
  • the second member 22 is an elongate plate-like member having the first principal surface 22a and the second principal surface 22d, and it includes a plurality of fins disposed on both the principal surfaces 22a and 22d and extending in the lengthwise direction thereof.
  • the second member 22 is assembled such that the lengthwise direction of the second member 22 is perpendicular to the lengthwise direction of the first member 21.
  • the second member 22 includes, on the first principal surface 22a facing the first member 21, a pair of first projections 22b (first fins) extending in the lengthwise direction thereof (i.e., in the X-direction).
  • the first guide portion 22c is provided by the pair of first projections 22b which are erected from the first principal surface 22a of the second member 22.
  • the pair of first projections 22b are arranged at positions spaced in the widthwise direction of the first member 21 (i.e., in the X-direction), the positions being on both sides of the first member 21 in the widthwise direction thereof.
  • a distance D1 between the pair of first projections 22b spaced in the widthwise direction of the first member 21 is equal to or larger than a widthwise size W21 of the first member 21.
  • Engagement of the first projections 22b with the first member 21 enables the second member 22 to slide in the Y-direction without rotating on the first member 21. Also, when the fixing member 24 is fastened, the second member 22 can be more surely avoided from being rotated and being dislocated.
  • first projections 22b contribute to increasing the section modulus in a cross-section perpendicular to the lengthwise direction of the second member 22 and can ensure the strength supporting the solar cell module 3 from below.
  • two sets of the pair of first projections 22b each arranged along the X-direction are provided on the first principal surface 22a of the second member 22.
  • four first projections 22b are formed on the first principal surface 22a.
  • the second member 22 includes, on the second principal surface 22d facing the third member 23, a pair of second projections 22e (second fins) extending in the lengthwise direction of the second member 22 (i.e., in the X-direction).
  • the second guide portion 22f is provided by the pair of second projections 22e which are erected from the second principal surface 22d of the second member 22 and which are extended in the X-direction.
  • the pair of second projections 22e are arranged at positions spaced in the Y-direction.
  • a distance D2 between the pair of second projections spaced in the Y-direction is equal to or larger than a size W23 of the third member 23 in the Y-direction.
  • the third member 23 can be smoothly and stably guided when the distance D2 between the pair of second projections 22e is substantially equal to the size of the third member 23 in its short direction (i.e., in the Y-direction).
  • Parts of the second principal surface 22d which are positioned outside the second guide portion 22f (second projections 22e), serve as resting portions 22g on which the solar cell modules 3 are rested.
  • the third member 23 By moving the third member 23 in a state where the solar cell modules 3 are rested on the resting portions 22g, the third member 23 can be easily arranged at a middle between the solar cell modules 3 adjacent to each other in the X-direction. Therefore, the solar cell modules 3 can be easily installed in a good external appearance as illustrated in Fig. 1(c) .
  • the mounting member 4 may be installed such that, as illustrated in this embodiment, the lengthwise direction of the first member 21 is parallel to the direction in which the roof is sloped.
  • the second member 22 and the third member 23 are more surely avoided from sliding and shifting, due to the dead loads, etc., from positions where those members are to be arranged. As a result, installation accuracy and installation efficiency can be further improved.
  • the size of the second member 22 in its lengthwise direction may be smaller than the size of the solar cell module 3 in the X-direction, more specifically, the size of the frame 12 in the X-direction which is disposed as an outer frame of the solar cell module 3. This enables the mounting member 4 to be stably arranged at the corners of the solar cell modules 3.
  • the size of the second member 22 in its lengthwise direction may be smaller than 1/2 of the size of the solar cell module 3 in the X-direction.
  • the second member 22 described above can be manufactured by using a material and a processing method similar to those for the first member 21.
  • the size of the second member 22 in its lengthwise direction may be 50 mm or longer.
  • the first member 21 is preferably fixed with being spaced 50 mm or longer from an abutting portion 2d. With such an arrangement, penetration of water into the inner side of the base structure 2 due to the capillary phenomenon along the wood screws 25 can be reduced. For that reason, the size of the second member 22 in the X-direction may be 100 mm or longer.
  • the third member 23 is a rail having a substantially T-shaped cross-section.
  • the third member 23 is assembled such that the lengthwise direction of the third member 23 is parallel to the lengthwise direction of the second member 22 and the lengthwise direction of the third member 23 is perpendicular to the lengthwise direction of the first member 21.
  • the third member 23 includes an upper surface portion 23a, an elongate hole 23b, side wall portions 23c, press-fixing portions 23d, and protruded portions 23e.
  • the elongate hole 23b is formed in the upper surface portion 23a.
  • the press-fixing portions 23d are plate-like portions extending outwards from upper ends of the side wall portions 23c in the Y-direction and are provided over the entire length of the third member 23 in its lengthwise direction.
  • the protruded portions 23e are plate-like portions protruding outwards from substantially midpoints of the side wall portions 23c in the Y-direction and have a size corresponding to about 1/3 of the size of the third member 23 in its lengthwise direction.
  • the elongate hole 23b enables the third member 23 to be moved within the range, over which the elongate hole 23b is formed in the third member 23, in a state where the fixing member 24 is loosened while it remains attached in place.
  • the press-fixing portion 23d can fixedly clamp the frame 12 of the solar cell module 3 in cooperation with the resting portion 22g of the second member 22.
  • a spacing (spacing in the Z-direction) L1 between the press-fixing portion 23d and the resting portion 22g, in particular, on the side clamping the eave side of the solar cell module 3, is required to be set slightly larger than a size L2 of the frame 12 of the solar cell module 3 in the Z-direction. This facilitates the work for mounting the solar cell modules 3 to the sloped surface sloping in the Y-direction.
  • a spacing L1-1 between the resting portion 22g positioned on the eave side and the press-fixing portion 23d is larger than a spacing L1-2 between the resting portion 22g positioned on the ridge side and the press-fixing portion 23d.
  • the side wall portion 23c positioned on the eave side contacts the second principal surface 22d of the second member 22, while the side wall portion 23c positioned on the ridge side does not contact the second principal surface 22d of the second member 22.
  • Each of the protruded portions 23e serves as a guide portion for adjusting the spacing between the solar cell modules 3 in the X-direction when the solar cell modules 3 are mounted to the mounting members 4, thereby improving workability.
  • the protruded portion 23e is arranged in a state sandwiched between the solar cell modules 3 adjacent to each other in the X-direction. Accordingly, the spacing between the adjacent solar cell modules 3 can be easily held constant and the solar cell modules 3 can be arrayed in a good external appearance.
  • the third member 23 described above can be manufactured by using a material and a processing method similar to those for the first member 21.
  • the size of the third member 23 in the Y-direction is smaller than the size of the second member 22 in the X-direction. Hence, the third member 23 can be stably moved on the second member 22.
  • the fixing member 24 includes a bolt 24a and a bolt lock 24b.
  • the bolt 24a is inserted through both the elongate hole 23b of the third member 23 and the bolt hole 22h of the second member 22, and is fixed to the bolt lock 24b on the inner side than the gap 21d of the first member 21.
  • the fixing member 24 may be comprised of stainless steel or hot-dip galvanized steel.
  • the bolt lock 24b can be manufactured by pressing or tapping.
  • the wood screws 25 are inserted through the through-holes 21b of the first member 21, and they fix the first member 21 to the base structure 2.
  • the wood screws 25 can also be comprised of stainless steel or hot-dip galvanized steel.
  • the adhesive member 26 is attached to the principal surface 21a of the first member 21 and is stuck to the base structure 2. Therefore, the adhesive member 26 serves to protect the surroundings of the fixed positions of the wood screws 25 against rain and moisture when the first member 21 is fixed to the base structure 2.
  • the adhesive member 26 can be prepared by cutting, e.g., an adhesive sheet of silicone sealant or butyl, into the form of strip.
  • a predetermined position where each mounting member 4 is to be installed is marked on the base structure 2 by using an ink pot, for example.
  • the predetermined position is selected such that the wood screws 25 for the mounting member 4 are fixed to the rafter 2c at a position other than the abutting portion 2d of the shingle 2a constituting the base structure 2.
  • the wood screws 25 are fixed to the rafter 2c that is a main structural member of a house, the strength in fixing the mounting member 4 to the base structure 2 is increased.
  • the mounting member 4 is assembled by loosely fixing the first member 21, the second member 22, and the third member 23 in the positional relationship, illustrated in Fig. 3(c) , with the fixing member 24, and attaching the adhesive member 26 to the principal surface 21a of the first member 21. Further, the mounting member 4 is bonded to the base structure 2 by using the adhesive member 26 in alignment with the mark put on the base structure 2, and it is fixed to the base structure 2 by using the wood screws 25.
  • the fixing member 24 of each of mounting members 4a in the first row, counting from the eave side of the base structure 2, is tightly fastened to fix the mounting member 4a, thereby fixing the relative positions of the second member 22 and the third member 23.
  • the fixed position of the mounting member 4a is adjusted such that, as illustrated in Fig. 1(c) , the protruded portion 23e of the third member 23 is located between the solar cell modules 3 adjacent to each other in the X-direction.
  • the frame 12 on the eave side of the solar cell module 3 is inserted to the gap between the press-fixing portion 23d and the resting portion 22g.
  • the spacing L1 between the press-fixing portion 23d and the resting portion 22g, which cooperatively hold the eave side of the solar cell module 3, is slightly larger than the size L2 of the frame 12 of the solar cell module 3 in the Z-direction, the solar cell module 3 can be smoothly inserted to the gap between the press-fixing portion 23d and the resting portion 22g without loosening the fixing member 24.
  • the solar cell module 3 is laid down toward the base structure 2 and the frame 12 of the solar cell module 3 is rested on the resting portion 22g of a mounting member 4b in the second row.
  • the second member 22 of the mounting member 4b in the second row is moved toward the eave side in the Y-direction along with the third member 23, whereby the ridge side of the solar cell module 3 is held between the press-fixing portion 23d and the resting portion 22g of the mounting member 4b.
  • the position of the second member 22 in the X-direction is controlled to adjust the fixed position thereof such that the protruded portion 23e is located between two solar cell modules 3 adjacent to each other in the X-direction.
  • the fixing member 24 of the mounting member 4b in the second row is more tightly fastened to fix the ridge side of the solar cell module 3 by the mounting member 4b.
  • the solar cell modules 3 in the second and subsequent rows can be installed similarly to the installation method for the solar cell module 3 in the first row, and hence duplicate description is not repeated (see Fig. 5(d) ).
  • the third member 23 is movable in the X-direction. Therefore, after installing the first member 21 to be away from the position possibly causing deterioration of waterproof, e.g., the position of the abutting portion 2d of the shingle 2a, the third member 23 can be moved to the desired position and the solar cell module 3 can be fixed at the desired position.
  • the second member 22 and the third member 23 are movable on the first member 21 in the Y-direction as illustrated in Fig. 6(b) , various solar cell modules 3 having different sizes in the Y-direction can be fixed by using one type of the mounting member 4.
  • the second member 22 and the third member 23 can be moved in the Y-direction for clamping and fixing of the solar cell module 3. Accordingly, a damage of the solar cell elements 17 in the solar cell module 3 possibly caused by a worker stepping on the solar cell module 3 during the work can be reduced.
  • the solar cell module 3 to which the present invention can be applied is not limited to the super-straight structure type described in the foregoing embodiment.
  • the present invention is also applicable to other various structures, such as the glass package structure and the substrate structure.
  • the installation state is not limited to the illustrated one.
  • the solar cell array 101 may be installed on, e.g., a horizontal surface.
  • a solar cell array 201 according to a second embodiment will be described in detail below with reference to Figs. 8 to 10 . Be it noted that description of similar components to those in the first embodiment is omitted.
  • the solar cell array 201 further includes an eave-side member 5 for fixing an eave-side frame 12e of the solar cell module 3 arranged at a lowermost position in the Y-direction in which the solar cell array 201 is sloped.
  • a sloping direction of the base structure 2 is called the Y-direction
  • a direction normal to the base structure 2 is called the Z-direction
  • a direction orthogonal to both the Y-direction and the Z-direction is called the X-direction hereinafter.
  • the solar cell modules 3 adjacent to each other in the Y-direction the one positioned on the lowermost side (i.e., the side nearest to the eave) is called a first solar cell module 3a, and the solar cell modules 3 positioned other than the lowermost side are each called a second solar cell module 3b.
  • the eave-side member 5 for supporting the eave side of the first solar cell module 3a will be described in detail with reference to Figs. 9 and 10 in addition to Fig. 8 .
  • the eave-side member 5 includes a base member (support) 32, a protective member 33, and an engagement member 35.
  • the protective member 33 is fixed onto the base member 32 by using both a screw member 34 and the engagement member 35. It is noted that one protective member 33 is fixed by a plurality of base members 32, which are elongate in the sloping direction and which are fixed onto the sloped surface of the base structure 2.
  • the eave-side frame 12e of the first solar cell module 3a is fitted and fixed to a later-described rail groove 33a of the protective member 33. That is to say, as illustrated in Fig. 8(b) , a lower-side portion of the first solar cell module 3a, which is positioned on the lowermost side in the Y-direction among the plurality of solar cell modules 3, is received in the protective member 33, and the protective member 33 is fixed to the base structure 2.
  • the protective member 33 is described in detail. As illustrated in Fig. 8(b) , the protective member 33 is a long member extending in the X-direction. The size of the protective member 33 in its lengthwise direction is substantially the same as that of one or plural solar cell modules 3 in the X-direction.
  • the protective member 33 includes a main body 33h, a rail groove 33a, a clamped member 33b, and a hollow portion 33c.
  • the rail groove 33a is opened in a direction facing the eave-side frame 12e of the solar cell module 3.
  • the rail groove 33a is elongate in the X-direction. Further, the size of the rail groove 33a in the Z-direction is substantially the same as that of the eave-side frame 12e in the Z-direction. Therefore, the solar cell module 3 can be fixed to the protective member 33 by fitting the eave-side frame 12e to the rail groove 33a.
  • the clamped portion 33b is protruded in a direction away from the rail groove 33a.
  • the clamped portion 33b can be fixed onto the base member 32 in a state clamped between the base member 32 and the engagement member 35 both described later. More specifically, the clamped portion 33b includes a concave portion 33d engaging with the engagement member 35.
  • the hollow portion 33c is a space adjacent to the rail groove 33a.
  • the protective member 33 includes a closed cross-section.
  • the hollow portion 33c is positioned adjacently on the eave side of the rail groove 33a and is a space defined in the closed cross-section.
  • the protective member 33 includes the rail groove 33a receiving one side portion of the solar cell module 3a and the hollow portion 33c formed in the body and extending in the lengthwise direction of the rail groove 33a, the eave-side frame 12e is reinforced and the solar cell module 3 can be more surely avoided from deformation of the eave-side frame 12e and/or slipping off of the eave-side frame 12e from the solar panel 11 when snow falls or drops.
  • the base member 32 will be described in detail below.
  • the base member 32 has a similar shape to that of the first member 21 in the solar cell array 101 according to the above-described first embodiment. More specifically, as illustrated in Fig. 10(c) , the base member 32 includes a principal surface 32a, through-holes 32b, resting portions 32c, a gap portion 32d, and third projections 32e.
  • the through-holes 32b are formed in the principal surface 32a for insertion of wood screws 31 therethrough.
  • the base member 32 is fixed to the base structure 2 by the wood screws 31 inserted through the through-holes 32b.
  • the principal surface 32a includes a concave-convex portion extending in the lengthwise direction of the base member 32. With the principal surface 32a including the concave-convex portion, a similar advantageous effect to that described above in connection with the first member 21 can be obtained.
  • the base member 32 has a substantially U-shaped cross-section, and the resting portions 32c are protruded from both sides of an opening of the U-shaped cross-section.
  • the gap portion 32d is formed between the resting portions 32c.
  • the resting portions 32c support the protective member 33.
  • the third projections 32e are disposed on lateral surfaces of the base member 32 and are engageable with stopper portions 35a of the engagement member 35 described below.
  • the engagement member 35 includes the stopper portions 35a, a U-shaped hole 35b, a clamping portion 35c, and fourth projections 35d.
  • the U-shaped hole 35b is a hole through which the screw member 34 is inserted.
  • the clamping portion 35c clamps the protective member 33 in cooperation with the base member 32.
  • the stopper portions 35a are engageable with the third projections 32e on the lateral surfaces of the base member 32, respectively, and the clamping portion 35c of the engagement member 35 is engageable with the concave portion 33d in the clamped portion 33b of the protective member 33.
  • the engagement member 35 is fixed to the resting portions 32c of the base member 32 by the screw member 34.
  • the screw member 34 By fastening the screw member 34, the concave portion 33d in the protective member 33 and the fourth projections 35d of the engagement member 35 are engaged with each other, and the clamped portion 33b of the protective member 33 is clamped by the resting portions 32c of the base member 32 and the engagement member 35.
  • the protective member 33 can be fixed onto the base member 32.
  • the protective member 33 can be more surely avoided from dropping.
  • the base member 32, the engagement member 35, and the protective member 33, described above, can be manufactured by a similar manufacturing method to that described above for the first member 21.
  • the screw member 34 includes a bolt 34a and a bolt lock 34b.
  • the bolt 34a is inserted through the U-shaped hole 35b of the engagement member 35 and is fixed to the bolt lock 34b on the inner side than the gap portion 32d of the base member 32.
  • the structure and the material of the screw member 34 can be selected similarly to those of the above-described fixing member 4.
  • the wood screws 31 are inserted through the through-holes 32b of the base member 32, thereby fixing the base member 32 to the base structure 2.
  • the structure and the material of the wood screws 31 can be selected similarly to those of the above-described wood screws 25.
  • An adhesive member 40 has the function of sealing off the clearance between the base member 32 and the base structure 2 and reducing penetration of rain into the inner side of the base structure 2 along the wood screws 31.
  • the adhesive member 40 is attached to the principal surface 32a of the base member 32 and is stuck to the base structure 2.
  • the adhesive member 40 protects the surroundings of the fixed positions of the wood screws 31 against rain and moisture.
  • the structure and the material of the adhesive member 40 can be selected similarly to those of the above-described adhesive member 26.
  • the base member 32 is fixed to an optionally selected position on the base structure 2 by the wood screws 31 with the adhesive member 40 interposed therebetween.
  • the strength in fixing the base member 32 can be increased by selecting, as the fixed position of the base member 32, a position where the wood screws 31 for fixing the base member 32 are driven into the rafter 2c of the base structure 2.
  • the engagement member 35 is loosely mounted onto the base member 32 by the screw member 34. Thereafter, the clamped portion 33b of the protective member 33 is inserted between the clamping portion 35c of the engagement member 35 and the resting portions 32c of the base member 32.
  • the concave portion 33d in the protective member 33 is engaged with the fourth projections 35d of the engagement member 35, and the protective member 33 is fixed onto the base member 21 by fastening the screw member 34.
  • the eave-side frame 12e of the first solar cell module 3a is inserted and fixed to the rail groove 33a of the fixed protective member 33.
  • the solar cell array 201 includes a structure that the eave-side frame 12e of the first solar cell module 3a is inserted and fixed to the rail groove 33a of the protective member 33. Therefore, when snow is deposited on the eave side of the solar cell array 201 and a load in a torsional direction is applied to the eave-side member 5 and the eave-side frame 12e of the first solar cell module 3a, the protective member 33 and the eave-side frame 12e can be torsionally deformed as an integral unit. Accordingly, torsional rigidity of the solar cell array 201 on the eave side can be increased and torsional deformation of the solar cell array 201 can be reduced.
  • the hollow portion 33c is positioned adjacent to the rail groove 33a on the opposite side of the rail groove 33a. Because the hollow portion 33c is a space in the closed cross-section in which cross-section of the member is closed, the torsional rigidity of the protective member 33 can be effectively increased, and the load resistance performance of the solar cell array 201 can be enhanced.
  • the eave sides of the first solar cell modules 3a are arrayed in a row in the X-direction along the protective member 33, and accordingly eave-side portions of the first solar cell modules 3a, which are most clearly viewed from the outer side, appear to be aligned. As a result, a design of the solar cell array can be improved.
  • the protective member 33 is held between the base member 32 and the engagement member 35. Therefore, the protective member 33 is movable in its lengthwise direction, and the base member 32 can be arranged and fixed at an optionally selected position with respect to the protective member 33.
  • the base member 32 can be fixed to the rafter 2c of the base structure 2 by the wood screws 31 in order to increase the mounting strength of the solar cell array 201. By arranging the base member 32 at such a position, the reliability of the solar cell array 201 can be improved.
  • the installation method for the solar cell array 201 is carried out by inserting the eave-side frame 12e of the first solar cell module 3a to the rail groove 33a of the protective member 33 from the ridge side. Accordingly, the worker can install the solar cell array 201 without stepping on the solar cell module 3. It is hence possible to reduce the occurrence of cracks in the solar cell elements 17 during the installation work, and to improve workability.
  • a solar cell array 301 according to a third embodiment will be described below with reference to Figs. 11(a) and 11(b) .
  • the solar cell array 301 according to the third embodiment differs from the solar cell array 201 according to the second embodiment in structure of the protective member 33.
  • the hollow portion 33c of the protective member 33 has a quadrangular closed cross-section when it is cut in a direction perpendicular to the lengthwise direction of the rail groove 33a.
  • the torsional rigidity is increased about twice in comparison with the hollow triangular cross-section that is substantially equal in size to the quadrangular closed cross-section.
  • the strength of the solar cell array 301 on the eave side can be greatly increased.
  • the hollow portion 33c may have a trapezoidal shape in cross-section, which includes an oblique side on the eave side of the hollow portion.
  • the rail groove 33a of the protective member 33 includes an inclined portion 33e.
  • the inclined portion 33e is disposed in an opening of the rail groove 33a and has an inclined surface that is inclined downwards as illustrated.
  • the inclined surface is inclined such that it comes closer to the base member 32 as the distance from a main body 33h of the protective member 33 increases.
  • the lower-side portion of the first solar cell module 3a is guided into the rail groove 33a by the inclined portion 33e. Accordingly, as the eave-side frame 12e of the first solar cell module 3a is progressively inserted to the opening of the rail groove 33a, the eave-side frame 12e is more tightly clamped by the rail groove 33a.
  • a bent portion 33g is further provided on the ridge side of the main body 33h.
  • the bent portion 33g serves as a spring such that the rail groove 33a can clamp the eave-side frame 12e by an appropriate force.
  • a solar cell array 401 according to a fourth embodiment will be described below with reference to Fig. 11 (c) .
  • the solar cell array 401 according to the fourth embodiment differs from the third embodiment in structure of the protective member 33.
  • the protective member 33 includes a third projection 33f on its upper surface.
  • the third projection 33f is a snow-guard projection extending in the lengthwise direction of the rail groove 33a and projecting upwards of the protective member 33.
  • the third projection 33f thus provided serves as a snow guard capable of making snow deposited on the solar cell array 401 less likely to slip down in large momentum. Since the protective member 33 includes the structure with greater torsional rigidity as described above in the present embodiment, the present embodiment can also realize a guard against snow while reducing damage of the solar cell array 401.
  • the present invention is not limited to the foregoing embodiments.
  • the present invention may be applied to various sloped surfaces, such as outer wall surfaces or outer surfaces of buildings, other than the roof.
  • a solar cell array 501 according to a fifth embodiment will be described below with reference to Figs. 12(a) to 12(c) .
  • the solar cell array 501 further includes a height adjusting means M.
  • the height adjusting means M serves to move at least the first member 21, the second member 22, and the third member 23 of the mounting member 4 in the Z-direction.
  • the solar cell modules 3 can be stably fixed with a good external appearance even when the installation surface, e.g., the roof surface, has irregularities.
  • the solar cell modules 3 can be flatly installed even on the installation surface having irregularities that have been caused due to, e.g., distortions of the roof.
  • the solar cell array 501 further includes a support member 51.
  • the height adjusting means M is comprised of a male screw and a female screw, which can mesh with each other and are provided respectively in the first member 21 and in the support member 51.
  • the support member 51 includes a base portion 51a and a male screw 51b.
  • the first member 21 includes a female screw portion 21e.
  • the male screw 51b is inserted through the female screw portion 21e.
  • the first member 21 is rotatable in an XY-plane with the male screw 51b being an axis of rotation.
  • the base portion 51a of the support member 51 is fixed to the installation surface, e.g., the roof surface, by a plurality of wood screws 52. At that time, the wood screws 52 are positioned perpendicularly to the base portion 51a.
  • the base portion 51a of the support member 51 can be comprised of, e.g., aluminum or stainless steel.
  • the male screw 51b can be comprised of, e.g., steel or stainless steel.
  • the support member 51 is fixed to a desired position on the installation surface.
  • the male screw 51b of the support member 51 is meshed with the female screw portion 21e of the first member 21 to which the second member 22 and the third member 23 are fixed in advance, thereby holding the first member 21 on the base portion 51a of the support member 51.
  • a unit obtained by integrally assembling the second member 22 and the third member 23 with the first member 21 will be referred to as an "assembled body" hereinafter.
  • the assembled body i.e., the first member 21, the second member 22, and the third member 23
  • the assembled body is rotated about the male screw 51b as an axis of rotation such that the resting portions 21c of the first member 21 lie at a desired position in the height direction (Z-direction) from the installation surface.
  • the position of the assembled body can be moved in the vertical direction by a height corresponding to a pitch of grooves of the male screw 51b. Therefore, it is sufficient that the pitch of grooves of the male screw 51b is properly selected depending on the height of irregularities in the installation surface.
  • Fig. 12(a) illustrates a state where the assembled body is arranged at the highest position in the Z-direction
  • Fig. 12(b) illustrates a state where the assembled body is arranged at the lowest position in the Z-direction.
  • the size of the male screw 51b is set such that, as illustrated in Fig. 12(b) , an upper end of the male screw 51b does not project upwards from the resting portions 21c of the first member 21 in the state where the assembled body is at the lowest position in the Z-direction.
  • the base portion 51a of the support member 51 has an elongate shape extending in the sloping direction (Y-direction).
  • the wood screws 52 for fixing the base portion 51a to the base structure 2 are arrayed along the sloping direction (Y-direction).
  • the lengthwise direction of the base portion 51a is parallel to the lengthwise direction of the first member 21, and the base portion 51a is fixed to the sloped surface by the plural wood screws 52 that are arrayed in the lengthwise direction of the base portion 51a.
  • the female screw portion 21e is positioned on the side near an end of the first member 21 in its lengthwise direction (i.e., in the Y-direction). More specifically, the female screw 21e is provided at a position inwardly spaced by 1/4 of the length of the first member 21 from the end of the first member 21 in its lengthwise direction.
  • a region where the second member 22 is movable in the Y-direction can be sufficiently provided with respect to the size of the first member 21 by rotating the first member 21 such that the first member 21 is positioned relatively long toward the eave side or the ridge side from the support member 51. Accordingly, the component cost can be reduced and a wider movable region, i.e., a wider rotatable region, of the assembled body can be ensured.
  • first member 21 includes the female screw and the support member 51 includes the male screw
  • the embodiment is not limited to the illustrate one.
  • the first member 21 may include the male screw and the support member 51 may include the female screw.
  • a solar cell array 601 according to a sixth embodiment will be described below with reference to Fig. 13(a) to 13(c) .
  • the solar cell array 601 according to the present embodiment differs from the fifth embodiment in structure of the height adjusting means M.
  • the height adjusting means M is constituted by a cylindrical fourth member 6 arranged between the first member 21 and the second member 22. More specifically, the fourth member 6 includes a first cylindrical portion 61 and a second cylindrical portion 62, which can be meshed with each other. Each of the first cylindrical portion 61 and the second cylindrical portion 62 has a hollow cylindrical shape. For example, resin or aluminum can be used as materials of the first cylindrical portion 61 and the second cylindrical portion 62.
  • the first cylindrical portion 61 includes a first screw portion 61a on its outer peripheral surface
  • the second cylindrical portion 62 includes a second screw portion 62a formed in its inner peripheral surface and meshing with the first screw portion 61a.
  • the first screw portion 61a is a male screw
  • the second screw portion 62a is a female screw.
  • the second member 22 and the third member 23 can be moved together in the height direction (Z-direction) by rotating the second cylindrical portion 62.
  • the solar cell modules 3 can be flatly installed even on the installation surface having small irregularities that have been caused due to, e.g., distortions of the roof.
  • the first cylindrical portion 61 is arranged on the first member 21, and the second member 22 is arranged on the second cylindrical portion 62. Further, the first cylindrical portion 61 includes, at its lower end, engagement portions 61b engaging with the first member 21. More specifically, the engagement portions 61b are engaged with both the pair of resting portions 21c and the gap 21d of the first member 21.
  • the first cylindrical portion 61 is movable in the lengthwise direction of the first member 21 (i.e., in the Y-direction), and the second member 22 and the third member 23 are movable in the lengthwise direction of the first member 21.
  • the outer diameter of the first cylindrical portion 61 is larger than the width of the gap 21d.
  • the first member 21 can stably support the first cylindrical portion 61.
  • a center line 061 of the first cylindrical portion 61, a center line 062 of the second cylindrical portion 62, and a center line 024 of the fixing member 24 are arranged on one linear line.
  • the height adjusting means M i.e., the first cylindrical portion 61 and the second cylindrical portion 62
  • the first cylindrical portion 61 and the second cylindrical portion 62 are positioned right below the second member 22 and the third member 23 unlike the fifth embodiment.
  • the dead load is applied in the axial direction of the first cylindrical portion 61 and the second cylindrical portion 62, and hence a moment does not occur unlike the fifth embodiment. Accordingly, the strength of the solar cell array 601 can be increased.
  • the second member 22 is not always required to be arranged in direct contact with the first member 21. It is at least required that the first member 21, the second member 22, and the third member 23 are relatively movable in the X-, Y- and Z-directions as described above.
  • first cylindrical portion 61 arranged on the lower side includes the male screw at its outer periphery and the second cylindrical portion 62 arranged on the upper side includes the female screw at its inner periphery
  • the embodiment is not limited to the illustrated one. It is just required that the male screw is provided in one of the first cylindrical portion 61 and the second cylindrical portion 62, and the female screw is provided in the other.
  • the efficiency of the height adjusting operation is increased with the arrangement that, of the two cylindrical portions, the outer diameter of the cylindrical portion arranged on the upper side and rotated for adjusting the height is larger than that of the cylindrical portion arranged on the lower side.
  • the height adjusting means M according to the embodiments have been described above, the height adjusting means M usable in the present invention are not limited to the illustrated ones.
  • a solar cell array 701 according to a seventh embodiment will be described below with reference to Fig. 15 .
  • the solar cell array 701 according to the present embodiment differs from the solar cell array 101 according to the first embodiment in further including a spacer arranged between two solar cell modules 3a and 3b adjacent to each other in the Y-direction.
  • the solar cell array 701 includes a spacer 7 arranged between two solar cell modules 3 adjacent to each other in the Y-direction.
  • the spacer 7 is arranged in an intermediate portion of the solar cell module 3 in the X-direction that is perpendicular to the Y-direction.
  • the spacer 7 is arranged between a frame 12x of the first solar cell module 3a, extending in the X-direction, and a frame 12x of the second solar cell module 3b, extending in the X-direction.
  • the spacer 7 can be mounted in place by a simple fitting operation, and the distance between the first solar cell module 3a and the second solar cell module 3b can be properly specified by the spacer 7. As a result, the solar panel 11 can be more surely avoided from slipping off from the frame 12, and good workability is ensured.
  • This embodiment increases the number of components of the solar cell array, but it increases the advantageous effect of reducing torsional deformation of the solar cell module 3. Therefore, this embodiment is preferably applied to the solar cell module 3 having a larger size in the X-direction.

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Claims (12)

  1. Eine Solarzellenanordnung (101, 201, 301, 401, 501, 601, 701), aufweisend:
    eine Mehrzahl von Solarzellenmodulen (3), die entlang mindestens einer von einer X-Richtung und einer Y-Richtung senkrecht zu der X-Richtung in einem nicht-überlappten Zustand angeordnet sind, wobei hintere Flächen der Solarzellenmodule nach unten gerichtet sind, und
    ein Montage-Element (4), das zwischen Ecken der Solarzellenmodule, welche benachbart zueinander sind, angeordnet ist,
    wobei das Montage-Element aufweist:
    ein erstes Element (21), das sich in der Y-Richtung erstreckt,
    ein zweites Element (22), das auf dem ersten Element angeordnet ist und einen Stützabschnitt aufweist, der die hintere Fläche des Solarzellenmoduls abstützt,
    ein drittes Element (23), das auf dem zweiten Element angeordnet ist und einen Klemmabschnitt aufweist, der das Solarzellenmodul in Zusammenwirkung mit dem Stützabschnitt des zweiten Elements einklemmt, und
    ein Befestigungselement (24), das das zweite Element und das dritte Element vertikal durchdringt und das zweite Element und das dritte Element an dem ersten Element befestigt,
    wobei das zweite Element und das dritte Element entlang der Y-Richtung bewegbar sind,
    wobei das erste Element (21) eine langgestreckte Form hat, wobei die Y-Richtung eine Längsrichtung davon ist, und,
    bevor das zweite Element (22) und das dritte Element (23) durch das Befestigungselement (24) an dem ersten Element befestigt sind, das zweite Element in der Y-Richtung bewegbar ist und das dritte Element in der X-Richtung und der Y-Richtung bewegbar ist,
    dadurch gekennzeichnet, dass
    das zweite Element (22) in einer zweiten Hauptfläche (22d) davon, die dem dritten Element (23) zugewandt ist, einen zweiten Führungsabschnitt (22f) aufweist, der die Bewegung des dritten Elements in der X-Richtung bezüglich des zweiten Elements führt, und
    das dritte Element ein Durchgangsloch (23b) aufweist, durch das hindurch das Befestigungselement eingesetzt ist und das in der X-Richtung langgestreckt ist, wobei das Durchgangsloch (23b) ermöglicht, dass das dritte Element (23) in der X-Richtung bewegt wird, bevor das dritte Element (23) an dem ersten Element (21) befestigt ist.
  2. Die Solarzellenanordnung (101, 201, 301, 401, 501, 601, 701) gemäß Anspruch 1, wobei das zweite Element (22) auf einer ersten Hauptfläche (22a) davon, die dem ersten Element (21) zugewandt ist, einen ersten Führungsabschnitt (22c) aufweist, der die Bewegung des zweiten Elements in der Y-Richtung führt.
  3. Die Solarzellenanordnung (101, 201, 301, 401, 501, 601, 701) gemäß Anspruch 2, wobei der erste Führungsabschnitt (22c) aus einem Paar von ersten Vorsprüngen gebildet ist, die von der ersten Hauptfläche (22a) des zweiten Elements (22) aufgerichtet sind und an Positionen angeordnet sind, die in einer Breitenrichtung des ersten Elements (21) im Abstand sind, wobei die Positionen auf beiden Seiten des ersten Elements in der Breitenrichtung des ersten Elements liegen, und
    ein Abstand zwischen dem Paar erster Vorsprünge in der Breitenrichtung des ersten Elements größer oder gleich einer Breitengröße des ersten Elements ist.
  4. Die Solarzellenanordnung (101, 201, 301, 401, 501, 601, 701) gemäß Anspruch 1, wobei der zweite Führungsabschnitt (22f) durch ein Paar von zweiten Vorsprüngen (22e) bereitgestellt ist, die von der zweiten Hauptfläche (22d) des zweiten Elements (22) aufgerichtet sind und sich in der X-Richtung erstrecken,
    das Paar von zweiten Vorsprüngen in Positionen angeordnet ist, die in der Y-Richtung im Abstand voneinander sind, und
    eine Entfernung zwischen dem Paar zweiter Vorsprünge in der Y-Richtung größer oder gleich einer Größe des dritten Elements (23) in der Y-Richtung ist.
  5. Die Solarzellenanordnung (101, 201, 301, 401, 501, 601, 701) gemäß irgendeinem der Ansprüche 1 bis 4, wobei eine Größe des zweiten Elements in der X-Richtung kleiner als eine Größe des Solarzellenmoduls in der X-Richtung ist.
  6. Die Solarzellenanordnung (101, 201, 301, 401, 501, 601, 701) gemäß irgendeinem der Ansprüche 1 bis 5, wobei eine Größe des dritten Elements (23) in der Y-Richtung kleiner als eine Größe des zweiten Elements (22) in der X-Richtung ist.
  7. Die Solarzellenanordnung (101, 201, 301, 401, 501, 601, 701) gemäß irgendeinem der Ansprüche 1 bis 6, wobei das dritte Element (23) ferner einen hervorstehenden Abschnitt aufweist, der zwischen den Solarzellenmodulen (3), die benachbart zueinander sind, gehalten ist.
  8. Die Solarzellenanordnung (101, 201, 301, 401, 501, 601, 701) gemäß Anspruch 1, wobei die Mehrzahl von Solarzellenmodulen (3) zumindest entlang der Y-Richtung angeordnet ist, in der die Solarzellenanordnung geneigt ist, und
    die Solarzellenanordnung ferner aufweist ein Schutzelement (33), das einen Unterseitenabschnitt eines ersten Solarzellenmoduls (3a) abstützt, das von der Mehrzahl von Solarzellenmodulen auf der untersten Seite in der Y-Richtung angeordnet ist, eine Mehrzahl von in der Y-Richtung langgestreckten Stützen, wobei das Schutzelement an den Stützen befestigt ist.
  9. Die Solarzellenanordnung (101, 201, 301, 401, 501, 601, 701) gemäß Anspruch 8, wobei das Schutzelement (33) einen Körper, eine Schienennut, die in der X-Richtung langgestreckt ist und den Unterseitenabschnitt des ersten Solarzellenmoduls (3a) aufnimmt, und einen hohlen Abschnitt (33c) aufweist, der in dem Körper ausgebildet ist und sich in einer Längsrichtung der Schienennut erstreckt, und wobei die Schienennut einen geneigten Abschnitt (33e) zum Führen des Unterseitenabschnitts des ersten Solarzellenmoduls in die Schienennut aufweist.
  10. Die Solarzellenanordnung (101, 201, 301, 401, 501, 601, 701) gemäß irgendeinem der Ansprüche 1 bis 9, ferner ein Höhenverstellungsmittel (M) zum Bewegen von mindestens dem zweiten Element (22) und dem dritten Element (23) des Montage-Elements (4) in einer Z-Richtung aufweisend, die orthogonal zu der X-Richtung und der Y-Richtung ist.
  11. Die Solarzellenanordnung (101, 201, 301, 401, 501, 601, 701) gemäß Anspruch 10, ferner ein Stützelement (51) aufweisend, das unter dem ersten Element angeordnet ist und das erste Element (21) abstützt, wobei das Höhenverstellungsmittel (M) ein Außengewinde (51b) und ein Innengewinde (21e) aufweist, die auf dem ersten Element bzw. dem Stützelement vorgesehen sind, und die geeignet sind, ineinanderzugreifen.
  12. Die Solarzellenanordnung (101, 201, 301, 401, 501, 601, 701) gemäß Anspruch 10, wobei das Höhenverstellungsmittel (M) als ein zylinderförmiges viertes Element (6) vorgesehen ist, das zwischen dem ersten Element (21) und dem zweiten Element (22) angeordnet ist, wobei das vierte Element einen ersten zylinderförmigen Abschnitt (61), der in einer Außenumfangsfläche davon einen ersten Schraubenabschnitt (61a) aufweist, und einen zweiten zylinderförmigen Abschnitt (62) aufweist, der in einer Innenumfangsfläche davon einen zweiten Schraubenabschnitt (62a) aufweist, wobei der zweite Schraubenabschnitt mit dem ersten Schraubenabschnitt in Eingriff ist,
    der erste zylinderförmige Abschnitt auf dem ersten Element angeordnet ist und das zweite Element auf dem zweiten zylinderförmigen Abschnitt angeordnet ist,
    der erste zylinderförmige Abschnitt an einem unteren Ende davon einen Eingriffsabschnitt aufweist, der mit dem ersten Element in Eingriff ist, und
    eine Mittellinie des ersten zylinderförmigen Abschnitts, eine Mittellinie des zweiten zylinderförmigen Abschnitts und eine Mittellinie des Befestigungselements auf einer linearen Linie angeordnet sind.
EP11809494.5A 2010-07-20 2011-05-31 Solarzellenanordnung Not-in-force EP2597682B1 (de)

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JP2010162379 2010-07-20
PCT/JP2011/062441 WO2012011320A1 (ja) 2010-07-20 2011-05-31 太陽電池アレイ

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US20120192926A1 (en) 2012-08-02
EP2597682A4 (de) 2015-01-07
CN102959724B (zh) 2015-08-26
JP2013227859A (ja) 2013-11-07
JP5312609B2 (ja) 2013-10-09
JPWO2012011320A1 (ja) 2013-09-09
EP2597682A1 (de) 2013-05-29
JP5653483B2 (ja) 2015-01-14
WO2012011320A1 (ja) 2012-01-26

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